Home / 3,784.08-5,220.95-2,190.62

Finding the Fourth Proportional to 3,784.08, 5,220.95 and 2,190.62

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Solution

The fourth proportional to 3,784.08, 5,220.95 and 2,190.62 is: 3,022.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.08 : 5,220.95 = 2,190.62 : x
  2. Step 2: Convert to fraction form
    3,784.08/5,220.95 = 2,190.62/x
  3. Step 3: Cross multiply
    3,784.08x = 5,220.95 × 2,190.62
  4. Step 4: Simplify right side
    3,784.08x = 11,437,080.43
  5. Step 5: Solve for x
    x = 11,437,080.43/3,784.08
  6. Step 6: Final answer
    x = 3,022.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.